Evo stalls w/ AC on only when depressing clutch on decel
#1
Evo stalls w/ AC on only when depressing clutch on decel
Like title states, My evo stalls only when I depress the clutch on decel with ac on. The rpms drop to ~500rpm and sometimes stalls, and sometimes it catches. It only does it with the ac on and clutch in while decelling. I can sit at a stop with the clutch in or out and rev the engine and it will not drop the RPM's.
Car is mostly stock with the just a cone air filter and TBE, stock rom, stock flywheel. No boost leaks at all and the BISS is adjusted correctly with evoscan.
I believe it has to do with coasting fuel cut, is there anyway to adjust that with ecuflash. If I hold it in gear while decelling, I can feel the engine catch the idle in gear at about 1000-900 RPM and then I can push the clutch in and the idle wont drop.
I have also tried adjusting the ISCV tables AC ON and that does not seem to help the initial idle drop, only once the idle recovers(if it doesnt stall) it seems to raise the idle.
Also tried raising the AC on idle, but that does not effect the initial idle drop either.
Any other suggestions?
Car is mostly stock with the just a cone air filter and TBE, stock rom, stock flywheel. No boost leaks at all and the BISS is adjusted correctly with evoscan.
I believe it has to do with coasting fuel cut, is there anyway to adjust that with ecuflash. If I hold it in gear while decelling, I can feel the engine catch the idle in gear at about 1000-900 RPM and then I can push the clutch in and the idle wont drop.
I have also tried adjusting the ISCV tables AC ON and that does not seem to help the initial idle drop, only once the idle recovers(if it doesnt stall) it seems to raise the idle.
Also tried raising the AC on idle, but that does not effect the initial idle drop either.
Any other suggestions?
#4
It idles fine with the ac on after the idle dips, and it seems as if the IAC is working because the idle raises when turning the wheel when stopped, and adjusting the idle RPMS with ecuflash. Maybe it isnt reacting fast enough though? The car only has 35k miles though...
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#12
Update, raising the AC on ISCV steps seems to make the problem worse. also raising the AC on rpm to 1000 still doesn't help the initial rpm drop. I am at a loss here. It seems that the IAC isnt catching fast enough and the idle dips and then it tries to recover, and raising the ISCV steps just seems to exaggerate the problem.